2CD encoding always undersized

[gurabli]

Hi!

I'm trying to do a high-quality but standalone player compatible rip from two DVDs.
I use Gknot (not auto) and XviD. The movie is about 100 minutes long, and seems it is very compressible. I always got around 900MB file size with AC3 track and AC3 DC track. So the video is around 400MB only. But I would like to go to 2CD version.
Please help me to adjust xvid!

2-pass: Quatn: MPEG, QP ON, B-Vop: 2,1.50,1.00, PB,
MSP: 6, VHQ: 4, VHQ bframes: ON, Chroma motion ON,
Quant: 2-31, Trellis OFF

Using the highest resolution.

Thanx:
gurabli

[CWR03]

Gordian Knot doesn't work properly with the latest versions of Xvid. Either uninstall Xvid and use an older build with VfW support or use a different app.

[gurabli]

Gordian Knot doesn't work properly with the latest versions of Xvid. Either uninstall Xvid and use an older build with VfW support or use a different app.

Hm, sorry to hear that. But what is the problem with Gknot and newest Xvid?

What other app do you recommend, same like GKnot?

[talen9]

CWR03, it's not the first time I hear your saying this... and I don't agree with you at all.

I regularly use GordianKnot 0.35.0 (latest official version) with upgraded software, currently DGIndex 1.5.2, AviSynth 2.5.7, VDubMod 1.5.10 and XviD, both 1.1.3 (official branch, internal revision 0046) and 1.2.127 (experimental branch, internal revision 0047).

Both work like a charm.

0047 has a very little hitch, it usually oversizes the target dimension by no more than 1-2 MBytes; it is simple to compensate this behaviour, I just add 2 MBytes in the "files" section of GK's bitrate calculator and the resulting encoded/muxed file is always within the target with an approximation of 1 MByte.


Please link some official statement, or any threads here on Doom9 or other forums, that proves your statement ...

EDIT: I noticed you suggest to install an "older build with VfW support" ... but it is exactly this kind of build that comes with GK itself, and anyway there are *current* VfW builds, not only older ones ...


@Gurabli: fact is: the 900MB encode does satisfy you, quality-wise? If that is the case, you don't need *at all* to increase the size, there won't be any appreciable quality improvement .... anyway, did you do a Compressibility Test? How is the absolute and percentual result of it?

[gurabli]

@Gurabli: fact is: the 900MB encode does satisfy you, quality-wise? If that is the case, you don't need *at all* to increase the size, there won't be any appreciable quality improvement .... anyway, did you do a Compressibility Test? How is the absolute and percentual result of it?

No, the quality is awesome, no prob with that! I just wanted to follow the 1-2 CD standard - if it is a standard at all.
For 1CD it is too much audio and I got a poor video quality. I don't mind if it is 2CDs, but I always get undersized.
Most of the DVDs I encoded with AC3 5.1 audio were 2CD rips - usually the perfect ratio between video and AC3 audio (and sometimes 2nd audio track).

BTW, GKnot works fine for me, no other problems found!

And one more thing, I missed this one, what is exactly XviD VAQ build? Different matrices? Is it standalone compatible?

[talen9]

It's undersized simply because .. the target is over-dimensioned :)

Try lowering the min quantizer to 1 ... yes, it's overkill and this could possibly lead to problems during reproduction in some standalone player, but it should undersize a bit less.

Or you could go the anamorphic way ... search for it into the forum, though with GK it's less easy than with other frontends (like MeGUI, for instance).

EDIT: about XviD VAQ, here (http://forum.doom9.org/showthread.php?t=135093)'s its thread, there's all you have to know about it :)

[setarip_old]

@gurabli

Hi!I'm trying to do a high-quality but standalone player compatible rip from two DVDs...
The movie is about 100 minutes long, and seems it is very compressible...But I would like to go to 2CD version.Are you saying that you have an original 100 minute movie that is spread over 2 DVDs?

1) If so, is it an old "flipper", with each side a single-layered DVD5? If not, this makes no sense to me, as a 100 minute movie can easily fit on a single DL DVD.

2) If you want to create a standalone compatible 2 disc set, why don't you simply make an uncompressed DVD backup of each DVD?

What is the title of the DVD?

[manono]

He's making AVIs for burning to 2 CDs, setarip_old. I don't understand the point of your questions.

[setarip_old]

@manono

I was suggesting that, in this day and age, with blank DVD media costing as little or less than blank CD media, since the OP stated that he/she is: trying to do a high-quality but standalone player compatible rip from two DVDs...It makes more sense to make PERFECT duplicates of the two DVDs, rather than make compressed versions on two CDs...

[manono]

It makes more sense to make PERFECT duplicates of the two DVDs, rather than make compressed versions on two CDs...
And it might make more sense for you to post such opinions in a forum devoted to something other than creating AVIs using either AutoGK or Gordian Knot. I'm fairly certain gurabli knows the relative costs of CDs and DVDRs in his country, and that he also knows the format he wants for his movies.

[setarip_old]

@manono

I don't see anything harmful in my suggestion for an alternative - a simple effort to point out a way to yield higher quality results with less effort.

Sorry you seem to see it differently...